<p><span class="interaction">Double-click</span> on any cores that have been wrongly identified with the <span class="tool">Move</span> tool (shortcut <span class="shortcut">M</span>) and drag these to the correct position.</p>

<p>Also, <span class="interaction">right-click</span> any cores to toggle whether or not the core should be considered 'missing' and excluded from analysis (either because of too little tissue, or strong artefacts that would compromise the result).</p>

<details>
<summary>Screenshots</summary>

<div class="fig">
<img src="images/TMA_missing_before.jpg" class="shadowed" />
<figcaption>
Erroneous identification of an artefact (pen mark) as part of a valid TMA core.
</figcaption>
</div>


<div class="fig">
<img src="images/TMA_missing_during.jpg" class="shadowed" />
<figcaption>
TMA core selected by double-clicking with the <span class="tool">Move</span> tool selected.  Right-clicking then enables the core to be marked as 'missing'.
</figcaption>
</div>


<div class="fig">
<img src="images/TMA_missing_after.jpg" class="shadowed" />
<figcaption>
Light blue indicates that the core has been marked as 'missing', and will be excluded from analysis.
</figcaption>
</div>

</details>